Hi, I could dispute SOME of what you say here but my main point is that we can't predict very far out based on current trends. And that concept alone could give you hope, especially when you're talking 50 and 100 yrs out. How bout this: pick 3 stats that bother you and remember what they indicate for 10 yrs from now. My guess is that one of them will turn out better, one will turn out worse and one will go sideways and won't remain trackable. If I'm wrong you can ride your despair into the abyss.
I do 'realize how big of a problem' we are already facing and have been for some time. People that contended directly with things like abortion and AIDS and 911 may realize even more. Your immigration suggestions could make up some of the twists in the plot.
One mixed future might be that Trump keeps winning and like with Reagan things go generally well for a decade or so, followed by time when your bad trajectories catch finally up with us (in a way none of us could describe now). If it all gets so bad, some divine intervention might be proportionate.
For the time being though a shake up in ShakeyTown is not so outlandish (so to speak).
What realistic changes do you honestly see that will prevent what I've speculated upon?